HuagongsheHuagongshe Chemistry Print Report · For research reference only
4-Chloro-1,2-diaminobenzene → 2,3-Bis(bromomethyl)-6-chloroquinoxaline
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 4-Chloro-1,2-diaminobenzene | HCID 7263 | — |
| Reactant | 1,4-Dibromo-2,3-butanedione | HCID 22747 | — |
| Product | 2,3-Bis(bromomethyl)-6-chloroquinoxaline | HCID 10473086 | — |
Reaction Steps
Following the procedure of Example 1, condensation of 1,4-dibromo-2,3-butanedione with 1,2-diamino-4-chlorobenzene yielded 2,3-bis(bromomethyl)-6-chloroquinoxaline, m.p. 149°-150° C.; 1H NMR (CDCl3, 400 MHz): δ4.89 and 4.90 (singlets, 4H, CH2), 7.74 (dd, J1 =8.9 Hz, J2 =2.3 Hz, 1H, H-7), 8.01 (d, J=8.9 Hz, 1H, H-8), 8.07 (d, J=2.3 Hz, 1H, H-5).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05118675 |
| Source dataset | uspto-grants-1992_06 |
| ORD ID | ord-a828fcc24bce4001a402467336ecc702 |
| Source note | uspto-grants-1992_06 |